Contacts Question

On my Sammy S2 I have a couple of contacts that have their picture in their profile, however I can swipe left to show their Google+ profile and recent entries on Google+. Most of my contacts do not have this feature and I don't know what I did different to create it in the few contact that show the Google+ entries. I have looked for differences in the setup but I cannot see the variance. Does anyone know the finer points of setting up your contact pages in ICS?
Thanks in advance...

Your contact with pictures may have a Google + profile. As I think your phone book is stored on your google account, pictures of google + contacts pr automaticaly sync with your address book on your phone.